476 
MISCELLANEA. 
Turk, B.—Fur niederosterreichs Fauna neue Ortliopteren. Ent. 
Mon. Wien. 1862, yi. p. 81. 
Vollenhoyen, S. v.—Besclirijving van Dryobius riparius, v. Yoll. 
(Figures.) Ent. Tijd. 1862, v. p. 95. 
•-Jets over het cocon van Sayra Poisduvallii, Dej. (Figures.) 
Ibid. p. 97. 
■-Besclirijving einer nieuwe soort van Kakkerlakuit Sumatra, 
Archiblatta Hoevenii. (Figures.) Ibid. p. 106. 
Walsh, Benj. D.—List of the Pseudoneuroptera of Illinois, con¬ 
tained in tbe Cabinet of the Writer, witb Descriptions of over 
forty new Species, and Notes on their Structural affinities. Phil. 
Proc. 1862, p. 361. 
3. Annuloida. 
Cohn, Feed. —Bemerkungen iiber Baderthiere, (iii.) Z. w. Z. xii. 
p. 197. 
Getjbe, Ed. —Noch ein Wort iiber die Capitellen, und ihre Stelle irn 
Systeme der Anneliden. Wiegm. Arch. 1862, i. p. 366. 
Schneidee, Anton. —Ueber die Metamorphose der Actinotrocha 
branchiata. Arch. Anat. 1862, p. 47. 
Stimpson, William. —On new Genera and Species of Starfishes of 
the Family Pycnopodidse {Asteracanthion ; Mull, and Trosch.) 
Boston Proc. xiii. (1862), p. 261. 
Weisse, J. F.—Zur Oologie der Baderthiere. Petersb. Mem. 
7 ser. iv. p. 87. 
On the Existence oe Two Foems, and on theie Becipeocal 
Sexual Eelation, in seveeal Species oe the Genus Linum . 
By Charles Darwin, M.A., &c. Journ. Limi. Soc.—Bot. yii. 69. 
Following up his important discovery of the remarkable sexual re¬ 
lations subsisting between forms of the so-called hermaphrodite 
flowers of Primula and the Orchidacese, Mr. Darwin has been oberv- 
ing three or four species of Linum (Flax). His principal results we 
briefly lay before our readers. 
The large-flowered Crimson Flax occurs, like the Primrose, under 
two forms, which differ only in the pistil. No difference can be 
detected in the pollen. In one form the styles and stigmas together 
are about half as long as the pistil of the other form. In that with 
the short pistil, the five stigmas diverge, so as to pass between the 
surrounding and alternating stamens, and thus project into the tube 
formed by the bases of the petals. In the other form the styles are 
nearly upright. 
Mr. Darwin finds that the stigmas of each form are almost quite 
